Abstract
Economic information is needed to evaluate the sustainability of tillage systems used for winter wheat (Triticum aestivum L.) production in the Central Great Plains. This study compared the potential economic returns of conventional stubble-mulch tillage (CT), reduced-till (RT), and notill (NT) winter wheat production systems using estimated farmer costs or custom costs. Grain yields were not significantly different between tillage systems from 1987 through 1992 with 6-yr average grain yields of 40, 40, and 42 bu/acre for the CT, RT, and NT systems, respectively. Preharvest costs were highest for NT while RT and CT costs were virtually the same when using farmer based costs [...]
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